Tag: gravity

• Why wormholes (probably) don’t exist

  A lot of science fiction plot devices are devoted to getting around the speed of light. In the real Universe, nothing with mass can travel faster than light, which means we can’t travel to distant stars without taking decades, centuries, or longer in transit. So, sci-fi draws from teleportation, hyperdrive, warp drive, and the ultimate…

  Matthew R. Francis

  January 26, 2015

  Astronomy, Physics

  black holes, dark energy, dark matter, gravity, wormholes